Senior Network Engineer

NXTKey Corporation has been delivering Information Technology, Information management, Information Assurance (IA) and cybersecurity solutions to US Federal Government and Commercial Clients since 2005. Job Description We are searching for aSenior Network Engineerto support our work for the National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM), an institute of the National Institutes of Health.This opportunity is full time and onsite at the NIH-NCBI in Bethesda, MD withoptionfor some remote work. Ready to build the future of hybridonpremand cloud networking?We'reseeking aSenior Network Engineerwith a passion for designing and deploying high-performance networks. If you have deepexpertisewithArista EOS andCloudVision, and a proventrack recordof modernizing legacy infrastructure,you'reexactly whowe'relooking for.In this role, youwon'tjustmaintainnetworks;you'llbe a technical leader, driving innovation and shaping our network architecture.You'llwork with the latest technologies likeSpine-and-Leaf,VxLAN, EVPN, and BGP, and use yourPython scriptingskills to automate everything you can.This is your chance to be a key contributor to a critical scientific mission to improve health and advance medical breakthroughs. Duties & Responsibilities Architect and Deploy: Design and implement cutting-edge, high-performance network architectures, with a focus on Spine-and-Leaf designs. Master Arista: Leverage your deep knowledge of Arista's Extensible Operating System (EOS) and CloudVision platform. Manage F5: Configure and maintain F5 BIG-IP platforms, including virtual servers, pools, and iRules. Automate Everything: Use Python and other Linux tools to automate network management and streamline operations. Lead the Way: Act as a technical leader, mentoring team members, handling complex issues, and serving as a subject matter expert. Modernize and Support: Evolve our legacy networks for cloud-native environments and provide expert support to resolve complex network issues. Load Balanced Application Delivery: Implement load balancing strategies (e.g., round robin, least connections) to optimize application performance and ensure high availability. High Availability: Setting up and manage Arista and F5 device clusters in active/standby or active/active configurations to provide failover capabilities. AAA (Authentication, Authorization, and Accounting): Strong knowledge of AAA frameworks for network access control. Hands‑on experience configuring and managing TACACS+, Radius for device administration security in Cisco ICE. Network Hardware Lifecycle Management: Responsible for all network device patching, including security fixes and OS updates. Track device vendor support timelines and manage end of life transitions to updated hardware models. Network Monitoring: Monitor network traffic and alerts for proactive management and capacity planning. Provide up to date network metrics to all technical teams for better product development and troubleshooting. Qualifications Qualifications Required 10+ years of hands-on experience in network engineering. A CCIE or similar advanced networking certification is a plus. Strong experience with Arista EOS/CloudVision and F5 BIG-IP. Proficiency in Python scripting and network automation. Excellent communication skills and the ability to work independently. Additional Information Benefits and Salary We attract the best people in the business with our competitive benefits package that includes medical, dental and vision coverage, 401k plan with employer contribution, paid holidays, vacation, and tuition reimbursement. We offer a competitive salary commensurate with experience and location. The targeted range for this position is $110,000 - $160,000. If you enjoy being a part of a high performing, professional service and technology focused organization, please apply today! By clicking the link above or any third-party link within this posting, you are leaving this site and going to a third-party website where the third-party website's terms and privacy policy apply. #J-18808-Ljbffr Nxtkey-Corporation